200121122012012 has 48 divisors (see below), whose sum is σ = 353381232361920. Its totient is φ = 99157642214400.

The previous prime is 200121122011997. The next prime is 200121122012041. The reversal of 200121122012012 is 210210221121002.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2465082062 + ... + 2465163242.

It is an arithmetic number, because the mean of its divisors is an integer number (7362109007540).

Almost surely, 2^{200121122012012} is an apocalyptic number.

It is an amenable number.

200121122012012 is a deficient number, since it is larger than the sum of its proper divisors (153260110349908).

200121122012012 is a wasteful number, since it uses less digits than its factorization.

200121122012012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89082 (or 89080 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 200121122012012 its reverse (210210221121002), we get a palindrome (410331343133014).

The spelling of 200121122012012 in words is "two hundred trillion, one hundred twenty-one billion, one hundred twenty-two million, twelve thousand, twelve".